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Wyszukujesz frazę "South China block" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
The Collision Between Indochina and South China Blocks in Northwestern Vietnam and its Controversy
Autorzy:
Hung, Khuong The
Golonka, Jan
Du, Nguyen Khac
Powiązania:
https://bibliotekanauki.pl/articles/27323226.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
Indochina block
South China block
collision
Indosinian orogeny
Indochiny
Chiny
kolizje
Opis:
The Indosinian orogeny, which was regarded as the collision event between the South China and Indochina blocks that occurred in Southeast Asia, including Vietnam, resulting in the formation of the Indosinian mountain range. However, the question of how many times collision between these blocks occurred in the past and during which period remains unanswered. Furthermore, the closure of the ancient ocean and the evidence of its remnants between the South China and Indochina Blocks are still the subjects of serious debate. The underlying origin of the Indosinian thermo-tectonism is uncertain. The entire region was affected by the thermal-tectonic processes in the west, caused by the collision of the Sibumasu plate and Indochina block. The absence of evidence supporting the Indosinian as a significant mountain-building event is highlighted through an examination of regional paleogeography, as well as palaeontological and thermochronological data. There is no conclusive evidence to suggest that the Indochina and South China blocks collided during the Triassic times. A plate tectonic scenario that describes the Indosinian orogeny as a reactivation event triggered by the accretion of the Sibumasu block to Indochina is favored.
Źródło:
Inżynieria Mineralna; 2023, 2; 103--112
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A strongly positive sulphur isotopic shift in late Ediacaran-early Cambrian seawater : evidence from evaporites in the Salt Range Formation, northern Pakistan
Autorzy:
Meng, Fanwei
Zhang, Zhili
Bukowski, Krzysztof
Zhuo, Qingong
Ahsan, Naveed
Ur-Rehman, Saif
Ni, Pei
Powiązania:
https://bibliotekanauki.pl/articles/2059584.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sulphur isotope
gypsum
Salt Range Formation
Indo-Pakistan Plate
South China
Yangtze Block
Opis:
The Salt Range Formation in northern Pakistan is globally well-known for its extremely large evaporite deposits dated to the upper Ediacaran–lower Cambrian. This huge evaporite belt formed an area covering present-day parts of India, Pakistan, Iran, Oman, and even South China (~200,000 km2 in South China). Sulphate minerals, including anhydrite and gypsum, can continuously record seawater sulphur isotopic composition. Until now, there was only one dataset reporting the isotopic composition of evaporites in Pakistan. This study reports new data, which points to a strongly positive sulphur isotopic shift (>+30‰, VCDT values) in the Salt Range Formation in Pakistan. Based on the stratigraphic position, similarity in lithology, age, and sulphur isotope data of the evaporitic sequences, it can be inferred that the Neoproterozoic Indo-Pakistan Plate and the Yangtze Platform were closely related palaeogeographically during the terminal Neoproterozoic. This interpretation can improve understanding of the palaeogeographical evolution of the area during the Neoproterozoic, with particular reference to the origin of biogeochemical cycles and the diagenetic evolution of the evaporitic deposits.
Źródło:
Geological Quarterly; 2021, 65, 2; 65: 30
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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